An overview of the Internet explores such online fundamentals as getting connected, searching the Web, contributing to newsgroups, FTP, Gopher, chat groups, e-mail, multimedia, MP3, and online security.
Kept more as a curio - I used this at the time when it really was still the infant internet. I think the reason why I keep it was the concept on breaking a wall, as I emailed the author and he emailed me back. At the time (1995), this was very spooky.